Definition
A card is a small, rectangular piece of stiff paper, plastic, or other material used for various purposes. Think of it as a versatile little rectangle. It can be a playing cardπ, a credit cardπ³, a business cardπΌ, or a greeting cardπ. Cards store information, grant access, or serve as a form of communication. They're a ubiquitous part of modern life, both physical and digital (like graphics cards in computers).